This week on City Limits, Kevin and Meg discuss superannuation, the Royal wedding, and the footage from the Sea Shepherd. Dave Kerren, an active unionist working on a number of campaigns in Melbourne joins us on the phone from a Maritime Union of Australia community gathering, until called away by an active moment on the front line. We are then joined by Dave Sweeney from the Australian Conservation Foundation who offers some fascinating insights into the activities and philosophies of the Minerals Council of Australia, and the processes (or lack thereof) of mine site rehabilitation.